div.zero3-layout-menu {
    position: fixed;
    z-index: 99;
    height: calc(100vh - 41px);
    /*border-right: 2px solid rgb(229, 229, 229);*/
    padding: 0px 0px 0px 0px;
    overflow: auto;
}

ul, li {
    width: 100%;
}

div.zero3-module {
    padding: 13px 13px 13px 15px;
    cursor: pointer;
}

div.zero3-module:hover {
    /*background-color: whitesmoke;*/
    color: white;
}

div.zero3-module-menu {
    padding: 13px 13px 13px 35px;
    cursor: pointer;
}

div.zero3-module-menu:hover {
    /*background-color: whitesmoke;*/
    color: white;
}